Home / 3,728.27-5,145.05-2,330.75

Finding the Fourth Proportional to 3,728.27, 5,145.05 and 2,330.75

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Solution

The fourth proportional to 3,728.27, 5,145.05 and 2,330.75 is: 3,216.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.27 : 5,145.05 = 2,330.75 : x
  2. Step 2: Convert to fraction form
    3,728.27/5,145.05 = 2,330.75/x
  3. Step 3: Cross multiply
    3,728.27x = 5,145.05 × 2,330.75
  4. Step 4: Simplify right side
    3,728.27x = 11,991,825.29
  5. Step 5: Solve for x
    x = 11,991,825.29/3,728.27
  6. Step 6: Final answer
    x = 3,216.46

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.